[1]} proposed the concept of a constant production or income of AE
which may be stored (up to a limit), as a capital reserve of adaptation. He showed that
this concept best explains the clinical and Selye's own laboratory findings. According to
[1]}, it is possible that, had Selye's experimental animals been asked to
spend adaptation at a lesser rate (below their energy income), they might have been able to cope
successfully with their stressor indefinitely. The whole systems of adaptation reactions
to weaker factors was systematized by [3]}. On the basis of this system,
[4]} developed the activation therapy, which was applied in clinic,
aerospace and sport medicine.
